Nitori Stretch-Fit Multi Sheet (WD〜Q) Thank you for viewing. This is a new, unused item, but please understand that it has been stored at home before purchasing. * For both futons and mattresses * Stretches vertically and horizontally for a perfect fit * OK for thicknesses up to 38cm * Compatible sizes: (WD〜Q) Width 150〜170cm * Color: Gray This is a box sheet with excellent elasticity and a soft feel. I think it can be used comfortably throughout the year.